Cumberland Stove Works OMMF3500 Troubleshooting Guide, Problem Cause Too rich air/fuel mixture

INSTALLATION AND OPERATION MANUAL

MF3500G, MF3500S, MF3500B Models

TROUBLESHOOTING GUIDE

Unplug stove before performing any maintenance.

WARNING

NEVER SERVICE OR TOuCH THE FEED AUGER WITH THE STOVE PLUGGED IN.

Problem	cause: Too rich air/fuel mixture
? Fire burns with a lazy, orange	 Make sure glass door is shut and	 Moisture content above 15%. Allow fuel to dry or
flame and/or fuel builds up in the	sealed tightly. If not, adjust door handle	mix with wood pellets.
fire pot. Glass may become dirty.	or replace gasket.	 Check inside parlor stove and exhaust pipes for
	 Check that ash pan is in place and	blockage. Tap inside walls of firebox, clean behind
	sitting flat to assure a proper seal.	side access plates, clean fire pot and firebox vent
	 Check that exhaust fan is running	holes above firebrick panel.
	and venting properly. If not, check con-	 Feed rate is too high for fuel, reduce heat setting.
	nection and clean or replace.	Inadequate combustion air available, add combus-
		tion air.
Problem	CAUSE: Fire pot burns out of fuel
? Fire goes out or parlor stove	 Hopper empty, refill	 The TRI-X controller will instruct to push OFF key
shuts down. Fuel may stop feed-	 Auger jams. Remove auger and	until fuel selection is required.
ing.	clean. (Auger jams can be a problem if
	poor quality fuel is used. Or excessive
	fines (sawdust, corn cobs or husk) are
	found in hopper. Auger jams are evi-
	dent when the auger motor runs but no
	fuel is delivered.
Problem	CAUSE: Auger stops turning
? Fire goes out or parlor stove	 Feed auger has come loose. Check	 High limit sensor. Evident when parlor stove is ex-
shuts down. Fuel may stop feed-	to see if auger motor is turning and au-	tremely hot. Allow parlor stove to cool for one hour
ing.	ger is not.	and restart.
	NOTE: Feed auger is held to the	 Vacuum switch tripped. Caused by exhaust blower
	auger motor by a coupler that is	not running or venting blocked. Check blower, clean
	fastened to the feed auger motor.	or replace. Clean venting of blockage.
	Simply slide the feed auger into the	 Auger motor not operating. Inspect connection
	auger housing and rotate until it fits
	into the coupler.	and replace if necessary.
	 Heat sensor. If the operating tem-
	perature is too low the parlor stove will
	shutdown.
Problem	CAUSE: Automatic shutdown
? The screen is flashing a fault	 Read the fault screen and push the	 The OFF key must be pushed three times to clear
message.	OFF key.	the fault or cycle the power.

Most automatic shutdowns occur be-  The stove is ready for normal operation when

cause of loss of fire.	the [SELECT FUEL TYPE USE MODE KEY] reads
	steadily for 30 seconds.

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